In triangle ABC the value of `cosA/a+cosB/b+cosC/c is`(where `a,b,c` are the length of side `BC,CA,AB)`

In a triangle ABC, if (cosA)/a=(cosB)/b=(cosC)/c and the side a =2 , then area of triangle is

If in a triangle ABC, (cosA)/a=(cosB)/b=(cosC)/c ,then the triangle is

In a triangle ABC, the value of cosA/sinBsinC ​ + cosB/sinCsinA ​ + cosC/sinAsinB ​

In a triangle ABC , acosB + b cosC + c cosA =(a+b+c)/2 then

In a triangle ABC the expression a cosB cosC+b cosA cosB equals to :

In a triangle ABC the expression acosBcosC+bcosC cosA+c cosA cosB equals to :

In a triangle ABC the expression acosBcosC+bcosC cosA+c cosA cosB equals to :

Let ABC is be a fixed triangle and P be veriable point in the plane of triangle ABC. Suppose a,b,c are lengths of sides BC,CA,AB opposite to angles A,B,C, respectively. If a(PA)^(2) +b(PB)^(2)+c(PC)^(2) is minimum, then point P with respect to DeltaABC is

In any A B C ,2(bc cosA+ ca cosB+ab cosC) =

In a triangle ABC cosA+cosB+cosC<=k then k=